In March 8th 2012, it became the important cultural properties of Kyoto registered by Kyoto city government.
Those are registered only 54 properties in Kyoto. Both Kyoto city government and owners are responsibility to preserve a property for the future generation forever. It has a respectful attitude.
Please check the part of Kyoto city government website as follow.
You can download PDF file from 景観重要建造物指定一覧.
The Arashiyama House is #50 田中邸.